Dicarboxylic acid derivatives
The dicarboxylic acid derivatives according to the invention have the following structure ##STR1## wherein X denotes O, S, (CF.sub.2).sub.m, C(CF.sub.3).sub.2 or CF.sub.2 --CF(CF.sub.3) (m=1 to 10), and R stems from the following compounds: fluoro- or trifluoromethyl- and nitro- or cyanophenols, thiophenols or -aminobenzenes, 4-hydroxy-, 4-mercapto- or 4-aminocoumarins, N-hydroxysuccinimides or N-hydroxymaleimides, 2-hydroxy- or 2-mercaptobenzoxazoles or -benzothiazoles and 1-hydroxy- or 1-mercaptobenzotriazoles.
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Claims
1. A process for making a dicarboxylic acid compound having the structure: ##STR10## wherein X=O,S, (CF.sub.2).sub.m, C(CF.sub.3).sub.2 or CF.sub.2 --CF(CF.sub.3), and
- m=1 to 10;
- R is ##STR11## wherein D is O, S or NH, and
- R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 are independently H, F, CH.sub.3 or CF.sub.3 with the proviso that at least one of groups R.sup.1 to R.sup.5 is F or CF.sub.3 and at the most two of groups R.sup.1 to R.sup.5 are CH.sub.3 or CF.sub.3; ##STR12## where D is O, S or NH, and
- R.sup.6, R.sup.7 are independently H, F, CH.sub.3, CF.sub.3, CN or NO.sub.2 with the proviso that at least one of groups R.sup.6 and R.sup.7 is CN or NO.sub.2; ##STR13## wherein D is O, S or NH, and
- R.sup.1, R.sup.2, R.sup.3, R.sup.4 are independently H, F, CH.sub.3 or CF.sub.3, with the proviso that at the most two of groups R.sup.1 to R.sup.4 are CH.sub.3 or CF.sub.3; ##STR14## wherein R.sup.1 and R.sup.2 are independently H, F, CH.sub.3 or CF.sub.3; ##STR15## wherein Z=O or S, and
- R.sup.1, R.sup.2, R.sup.3, R.sup.4 are independently H, F, CH.sub.3 or CF.sub.3 with the proviso that at the most two of groups R.sup.1 to R.sup.4 are CH.sub.3 or CF.sub.3, comprising reacting a dicarboxylic acid having the structure ##STR16## with a compound having the structure
2. The process according to claim 1, wherein the reaction is carried out in the presence of dicyclohexylcarbodiimide.
3. A process for making poly-o-hydroxyamides and poly-o-mercaptoamides comprising reacting a dicarboxylic acid compound with a bis-o-aminophenol or bis-o-aminothiophenol, said dicarboxylic acid compound having the structure: ##STR17## wherein X=O,S, (CF.sub.2).sub.m, C(CF.sub.3).sub.2 or CF.sub.2 --CF(CF.sub.3), and m=1 to 10;
- R is ##STR18## wherein D is O, S or NH, and
- R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 are independently H, F, CH.sub.3 or CF.sub.3 with the proviso that at least one of groups R.sup.1 to R.sup.5 is F or CF.sub.3 and at the most two of groups R.sup.1 to R.sup.5 are CH.sub.3 or CF.sub.3; ##STR19## where D is O, S or NH, and
- R.sup.6, R.sup.7 are independently H, F, CH.sub.3, CF.sub.3, CN or NO.sub.2 with the proviso that at least one of groups R.sup.6 and R.sup.7 is CN or NO.sub.2; ##STR20## wherein D is O, S or NH, and
- R.sup.1, R.sup.2, R.sup.3, R.sup.4 are independently H, F, CH.sub.3 or CF.sub.3, with the proviso that at the most two of groups R.sup.1 to R.sup.4 are CH.sub.3 or CF.sub.3; ##STR21## wherein R.sup.1 and R.sup.2 are independently H, F, CH.sub.3 or CF.sub.3; ##STR22## wherein Z=O or S, and
- R.sup.1, R.sup.2, R.sup.3, R.sup.4 are independently H, F, CH.sub.3 or CF.sub.3 with the proviso that at the most two of groups R.sup.1 to R.sup.4 are CH.sub.3 or CF.sub.3.
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Type: Grant
Filed: Aug 28, 1996
Date of Patent: May 12, 1998
Assignee: Siemens Aktiengesellschaft (Munchen)
Inventors: Racai Sezi (Rottenbach), Hellmut Ahne (Rottenbach), Eberhard Kuehn (Hemhofen)
Primary Examiner: Johann Richter
Assistant Examiner: Jane C. Oswecki
Law Firm: Kenyon & Kenyon
Application Number: 8/704,213
International Classification: C07C23110; C07C38110; C07C 6708; C08G 6316;